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2a8556f32d
(crash on attempt to re-execute a statement with an open cursor) + post-review fixes. include/errmsg.h: Add a special error message when we attempt to mysql_stmt_fetch from a statement which has no result set. libmysql/errmsg.c: Error message text for CR_NO_RESULT_SET libmysql/libmysql.c: Move the code which frees result sets on client and closes the cursor on server, resets long data state on client and server. This makes one function out of two (mysql_stmt_reset and mysql_stmt_free_result), thus aggregating all related reset work in one place. sql-common/client.c: Fix one place where we flushed the pending result set of a statement, but didn't set unbuffered_fetch_cancelled flag. sql/share/errmsg.txt: Fix format of ER_UNKNOWN_STMT_HANDLER error message (needs to be fixed separately in 4.1). Add two new error messages for the case when we fetch from when there is no cursor and for the case when we attempt to execute a statement while there is a cursor. sql/sql_prepare.cc: Return error when we fetch while there is no open cursor and when we call execute while there is a pending cursor. Fix mysql_stmt_reset to close the open cursor if there is any. sql/sql_select.cc: free_items and free_root moved to Cursor::close(). sql/sql_select.h: A comment added. tests/mysql_client_test.c: A test case for Bug#9478, test the case of mysql_stmt_reset called for client-side cached result set and for the case with open cursor. All strcpy replaced with strmov (review request). |
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